Enter any time in Etc/GMT and find the corresponding asia/kabul time using this Time Calculator. Etc/GMT is a UTC +00:00 timezone offset where as Philippines Time (PHT) is a UTC +8:0 timezone offset.
If you're looking to upgrade from a watch that simply tells the time to something more complex, a GMT is a great option. These watches usually look quite simple, but can be used to tell two or even ...